CrazyEnglishing等高手请进，还是上次那个新闻发布问题

huguangwu 2003-10-16 05:25:12
我再发一次吧，希望能解决这个弱智问题


新闻类型表：NewsType
TypeID 主键
TypeContent 类型内容


新闻表：News

ID
TypeID
Title
Content
....

TypeID与NewsType的TypeID表一样，作为外键


然后我建了一个News_View的视图

SELECT dbo.News.ID, dbo.News.Title, dbo.News.Content, dbo.News.PictureID,
dbo.News.FileID, dbo.News.AddTime, dbo.News.FromIP, dbo.News.ReadCount,
dbo.NewsType.*
FROM dbo.News INNER JOIN
dbo.NewsType ON dbo.News.TypeID = dbo.NewsType.TypeID

然后我用自己的Bean查看该视图的信息，Bean没有错，其他的地方用得好好的，我在察看新闻页是这样写的

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<jsp:useBean id="newsBean" scope="page" class="page.page"/>
<%
ResultSet newsrs=null;
String newsid=null;
newsid=request.getParameter("newsid");
String sql=null;
sql="select * from News_View where id="+newsid;

newsrs=newsBean.selQuery(sql);
if(newsrs.next())
{
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title><%=newsrs.getString("Title") %></title>
<link href="css.css" rel="stylesheet" type="text/css">
</head>

<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<table width="476" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="476"><img src="images/news_title.gif" width="476" height="24"></td>
</tr>
<tr>
<td align="center"><font color="black" size=4><%=newsrs.getString("Title") %></font></td>
</tr>
<tr>
<td align="center">新闻类型：<%=newsrs.getString("TypeContent")%>加入时间：<%=newsrs.getDate("AddTime")%>　阅读次数：<%=newsrs.getInt("ReadCount")+1%></td>
</tr>
<tr>
<td><br>  <%=newsrs.getString("Content")%></td>
</tr>
<tr>
<td><img src="images/news_bottom.gif" width="473" height="35" border="0" usemap="#Map"></td>
</tr>
</table>

<map name="Map">
<area shape="rect" coords="394,18,450,32" href="javascript:window.close();">
</map>
</body>
</html>
<%

}
else
{
out.println("数据库中无此新闻");
}
newsrs.close();
%>


可是一加上这个新闻类型，这一项就出错，请大虾告诉我怎么回事
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huguangwu 2003-10-21
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哎，还是没解决，算了，结帐吧
huguangwu 2003-10-18
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CrazyEnglishing有ＱＱ号吗？
aku0708 2003-10-17
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你把这句改成if(newsrs.next())
while(newsrs.next())
试试
huguangwu 2003-10-17
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root cause

java.sql.SQLException: [Microsoft][ODBC SQL Server Driver]无效的描述符索引
at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6106)
at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:6263)
at sun.jdbc.odbc.JdbcOdbc.SQLGetDataStringDate(JdbcOdbc.java:3434)
at sun.jdbc.odbc.JdbcOdbcResultSet.getDataStringDate(JdbcOdbcResultSet.java:5540)
at sun.jdbc.odbc.JdbcOdbcResultSet.getDate(JdbcOdbcResultSet.java:934)
at sun.jdbc.odbc.JdbcOdbcResultSet.getDate(JdbcOdbcResultSet.java:951)
at org.apache.jsp.news_jsp._jspService(news_jsp.java:104)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:315)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.util.SecurityUtil$1.run(SecurityUtil.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:499)
at org.apache.catalina.util.SecurityUtil.execute(SecurityUtil.java:210)
at org.apache.catalina.util.SecurityUtil.doAsPrivilege(SecurityUtil.java:147)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:99)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:271)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at com.sun.enterprise.webservice.EjbWebServiceValve.invoke(EjbWebServiceValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:383)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:536)

huguangwu 2003-10-17
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type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: [Microsoft][ODBC SQL Server Driver]无效的描述符索引
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:564)
at org.apache.jsp.news_jsp._jspService(news_jsp.java:139)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:136)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:315)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.util.SecurityUtil$1.run(SecurityUtil.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:499)
at org.apache.catalina.util.SecurityUtil.execute(SecurityUtil.java:210)
at org.apache.catalina.util.SecurityUtil.doAsPrivilege(SecurityUtil.java:147)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:274)
at org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:99)
at org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:177)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:271)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.java:246)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at com.sun.enterprise.webservice.EjbWebServiceValve.invoke(EjbWebServiceValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:383)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:223)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:405)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:380)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:508)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:533)
at java.lang.Thread.run(Thread.java:536)


xqi8 2003-10-17
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出错信息帖出来吧！
huguangwu 2003-10-17
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出的就是无效的描述符，然后就是一大堆编译错误。
lynx1111 2003-10-17
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这是我测试好的代码：

<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %>
<%Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=test";
//pubs为你的数据库的
String user="sa";
String password="aaa";
Connection conn= DriverManager.getConnection(url,user,password);
Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
ResultSet newsrs=null;
int newsid;
newsid=1; //request.getParameter("newsid");
String sql=null;
sql="select * from dbo.News_View where id="+newsid;
newsrs=stmt.executeQuery(sql);
if(newsrs.next())
{
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title><%=newsrs.getString("Title") %></title>
<link href="css.css" rel="stylesheet" type="text/css">
</head>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<table width="476" border="0" cellspacing="0" cellpadding="0">
<tr>
<td width="476"><img src="images/news_title.gif" width="476" height="24"></td>
</tr>
<tr>
<td align="center"><font color="black" size=4><%=newsrs.getString("Title") %></font></td>
</tr>
<tr>
<td align="center">新闻类型：<%=newsrs.getString("TypeContent")%>
加入时间：<%=newsrs.getDate("AddTime")%>　
阅读次数：<%=newsrs.getInt("ReadCount")+1%></td>
</tr>
<tr>
<td><br>  <%=newsrs.getString("Content")%></td>
</tr>
<tr>
<td><img src="images/news_bottom.gif" width="473" height="35" border="0" usemap="#Map"></td>
</tr>
</table>
<%
}

else
{
out.println("数据库中无此新闻");
}
newsrs.close();
%>
<map name="Map">
<area shape="rect" coords="394,18,450,32" href="javascript:window.close();">
</map>
</body>
</html>
-------------------------------------------------------------------
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[News_View]') and OBJECTPROPERTY(id, N'IsView') = 1)
drop view [dbo].[News_View]
GO

SET QUOTED_IDENTIFIER ON
GO
SET ANSI_NULLS ON
GO

CREATE VIEW dbo.News_View
AS
SELECT dbo.News.ID AS ID, dbo.News.Title AS Title, dbo.News.Content AS Content,
dbo.News.PictureID AS PictureID, dbo.News.FileID AS FileID,
dbo.News.AddTime AS AddTime, dbo.News.FromIP AS FromIP,
dbo.News.ReadCount AS ReadCount, dbo.NewsType.TypeID AS TypeID,
dbo.NewsType.TypeContent AS TypeContent
FROM dbo.News INNER JOIN
dbo.NewsType ON dbo.News.TypeID = dbo.NewsType.TypeID

GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[FK_News_NewsType]') and OBJECTPROPERTY(id, N'IsForeignKey') = 1)
ALTER TABLE [dbo].[News] DROP CONSTRAINT FK_News_NewsType
GO

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[News]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[News]
GO

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[NewsType]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[NewsType]
GO

CREATE TABLE [dbo].[News] (
[ID] [bigint] IDENTITY (1, 1) NOT NULL ,
[TypeID] [int] NOT NULL ,
[Title] [varchar] (8000) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[Content] [text] COLLATE Chinese_PRC_CI_AS NULL ,
[PictureID] [int] NULL ,
[FileID] [int] NULL ,
[AddTime] [datetime] NOT NULL ,
[FromIP] [char] (15) COLLATE Chinese_PRC_CI_AS NOT NULL ,
[ReadCount] [bigint] NOT NULL
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]
GO

CREATE TABLE [dbo].[NewsType] (
[TypeID] [int] IDENTITY (1, 1) NOT NULL ,
[TypeContent] [varchar] (500) COLLATE Chinese_PRC_CI_AS NOT NULL
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[News] WITH NOCHECK ADD
CONSTRAINT [PK_News] PRIMARY KEY CLUSTERED
(
[ID]
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[NewsType] WITH NOCHECK ADD
CONSTRAINT [PK_NewsType] PRIMARY KEY CLUSTERED
(
[TypeID]
) ON [PRIMARY]
GO

ALTER TABLE [dbo].[News] ADD
CONSTRAINT [FK_News_NewsType] FOREIGN KEY
(
[TypeID]
) REFERENCES [dbo].[NewsType] (
[TypeID]
)
GO
------------------------------------------------
几点建议：
1。你的程序String newsid=null;
newsid=request.getParameter("newsid");
sql="select * from News_View where id="+newsid;
在这里需要用inter.praseint（记不清楚了）转换一下
2。如果确保视图中newsid职唯一可以用if(newsrs.next())
否则要用while(newsrs.next())并且这一段要放到循环外面
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title><%=newsrs.getString("Title") %></title>
<link href="css.css" rel="stylesheet" type="text/css">
</head>
<body leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">
<table width="476" border="0" cellspacing="0" cellpadding="0">
（尾部一样）
huguangwu 2003-10-17
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帮帮我吧
huguangwu 2003-10-17
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还是一样
9731boy 2003-10-16
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出什么错啊?
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Node.js，简称Node，是一个开源且跨平台的JavaScript运行时环境，它允许在浏览器外运行JavaScript代码。Node.js于2009年由Ryan Dahl创立，旨在创建高性能的Web服务器和网络应用程序。它基于Google Chrome的V8 JavaScript引擎，可以在Windows、Linux、Unix、Mac OS X等操作系统上运行。 Node.js的特点之一是事件驱动和非阻塞I/O模型，这使得它非常适合处理大量并发连接，从而在构建实时应用程序如在线游戏、聊天应用以及实时通讯服务时表现卓越。此外，Node.js使用了模块化的架构，通过npm（Node package manager，Node包管理器）,社区成员可以共享和复用代码，极大地促进了Node.js生态系统的发展和扩张。 Node.js不仅用于服务器端开发。随着技术的发展，它也被用于构建工具链、开发桌面应用程序、物联网设备等。Node.js能够处理文件系统、操作数据库、处理网络请求等，因此，开发者可以用JavaScript编写全栈应用程序，这一点大大提高了开发效率和便捷性。 在实践中，许多大型企业和组织已经采用Node.js作为其Web应用程序的开发平台，如Netflix、PayPal和Walmart等。它们利用Node.js提高了应用性能，简化了开发流程，并且能更快地响应市场需求。
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